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(a) How much work is done by the horizontal force F_p = 150 N on the 18 kg block of the figure when the force pushes the block 5.5 m up along the 32 degree frictionless incline?
(b) How much work is done by the gravitational force on the block during this displacement?
(c) How much work is done by the normal force?
(d) What is the speed of the block (assume that it's zero initally) after this displacement?
Two converging lenses are used in a particular device. The first lens (the one closest to the object) has a focal length of 200 mm. Find the distance of the final image along with its magnification
o particles with charges +9e and -9e are initially very far apart (effectively an infinite distance apart). which is the change in the electric potential energy
An oil drop whose mass is determined to be 3.3x10^-15 is held at rest between two large plates separated by 1cm while the potential difference between them is 340 V. How numerous excess electrons does this have here.
using a large shiny curved surface (mirror). you notice that an object is upright and exactly 2/3 of the height of the object when it is 150m away from the mirror. what is the image distance
A volleyball is spiked so that its incoming velocity of +4.2 m/s is changed to an outgoing velocity of -24 m/s. What impulse does the player apply to the ball
A 17-cm-long microscope has an eyepiece with a focal length of 3.1cm and an objective with a focal length of 0.35cm. What is the approximate magnification
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In a tornado or hurricane, a roof may tear away from the house because of a difference in pressure between the air inside and the air outside. What is the magnitude of the force on the roof
Four identical springs are used as part of a car's suspension system, one on each wheel. What will be the frequency at which the car will bounce
Physics: Find the shear stress on the rod and vertical deflection at the end of the rod, A horizontal aluminum rod 4.2 cm in diameter projects 7.6 cm from a wall. A 1400 kg object is suspended from the end of the rod
The average intensity of sunlight at the top of the earth's atmosphere is 1385 W/m2. What is the maximum energy
Consider a chain with length 0.9 m and mass per unit length 0.6 kg/m. Suppose it is initially suspended above a table so that the lower, What is the force when one-half of the chain lies on the table
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